Pregnant and my boobs feel like I need to RELEASE

I’m 13 weeks pregnant with my second baby. I breastfed with my first child so I guess that’s why my boobs are growing so much faster this time around... They’re getting so hard and I feel like I need to release some milk for some relief 😭 I know there’s no milk yet-so what can I do for some relief?

Dumb question: Could there be colostrum in there? If I hand expressed/hand pumped my breasts would that provide relief?

I stopped breastfeeding my first about 2 years ago*

Please let me know if I should post this elsewhere.